Not so fast. I saw the post and the change in the law about a month ago. The translation I came up with lead me to the same conclusion as you. Unfortunately when I showed it to a foreigner, fellow biker who is fluent reading and speaking Chinese he corrected me. What he informed me that the law is changing is that going forward on toll roads where motorcycles are allowed, they will now be charged a toll equal to cars. No change in the rights of the Provinces to allow or not allow motorcycles on expressways. So we still don't get to ride on expressways, but we now have to pay on toll roads where we didn't used to.

Judging by reading about recently protests of motorcycles in some cities regarding the expressway ban I have to believe that the ban is not due to be lifted.

Fingers crossed, guys! Let's see...
Anyway, lastcweek I was in Qinghai and GanSu province where it seems at least acceptable to ride with bikes on the expway. Is there a list somewhere which provinces allow bikes on expways?